Gene is investigating what makes bread moldy. He put two identical slices of bread on separate plates. He made one slice moist and kept the other slice dry. He left the uncovered plates on a table for 2 hours. Then, he sealed them in plastic bags and put them in a dark, warm place. He looked at them each day for five days. After five days, he observed that 50 percent of the moist slice was moldy, and none of the dry slice was moldy. If Gene observed the slices for three more days, what would he most likely observe?

Answers

Answer 1

Answer: The answer is: There will be more mold on the moist slice and still none of the dry slice.

Molds belong to the kingdom Fungi. They are multicellular fungi consisting of multicellular filaments (hyphae). For growth, all molds need moist surface. This is the reason why in Gene's experiment, the only moist slice of bread was moldy. They have short life cycle, so 5 days were enough for molds to cover 50% of moist slice. Extended period of time will allow molds to spread more through moist surface if the surface remain moist.

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Which of the following plant cell structures could not be seen when using the 10X objective of the compound microscope?A) Nucleus
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Answers

Endoplasmic Reticulum

ER Golgi apparatus, because it packages proteins received from the ER cytoplasm

The Golgi body are the ones that slightly alter, organize and prepare so-called parcels to be delivered for all the organelles in the cell. They receive these packages mainly in the rough endoplasmic reticulum. These packages that set out by Golgi body are macromolecules that used and synthesized by cells in many operations. If ER is absent then it would only mean that Golgi body would have no use other than simply lysosomes but these macromolecules plays a dynamic role in many organelles –nutrients, ATP and cell metabolism. It'll have a ripple effect if ER is absent in the cell.

Which one of these situations is commonly caused by acid rain?a. people being poisoned by drinking water

b. fish and birds in freshwater habitats dying off

c. people receiving acid burns on there skin

d. whales and dolphins dying off in the oceans

Answers

A situation that is commonly caused by acid rain is the dying off of fish and birds in freshwater habitats. Thus, the correct option for this question is B.

What do you mean by Acid rain?

Acid rain may be defined as a type of precipitation that correspondingly include acidic components, like sulfuric acid, nitric acid, etc. that fall to the ground from the atmosphere in wet or dry forms like rain, fog, hail, etc.

The pH of acid rain is generally low compared to normal water. So, it causes numerous impacts on the earth's surface. But the most consequential influence of acid rain is the destruction of fish and birds in freshwater habitats.

It generally lowers the pH of the freshwater ecosystem and makes it unfavorable for many organisms like producers, small fishes, birds, etc. They cannot adapt themselves to such lower pH and have to dye off.

Therefore, the correct option for this question is B.

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I think is C because it was

what would happen to the human population if over a long period of time each couple in a population had only two offspring

Answers

The population rate would decrease, the population would still increase but in a slower phase. If the death rate is more than the birth rate then the human population will start to go down.

If yellow,red and orange pigments exist in the leaves of trees,why are leaves green except for in the autumn?A) Chlorophyll is the most abundant off all the pigments.
B) Chlorophyll molecules are the largest of the all pigment molecules.
C) Chlorophyll reproduces faster than the other pigments.
D) Green is the color of the spectrum most easily seen by humans.

Answers

If yellow, red, and orange pigments exist in the leaves of trees. The leaves appear green except for the autumn because the chlorophyll is the most abundant of all the pigments present. Thus, the correct option is A.

What is Chlorophyll?

Chlorophyll is a pigment which is present in all the green plants and in a few other organisms such as algae. It is required for the process of photosynthesis, by which light energy is converted into chemical energy in the plants. The chlorophyll pigment is responsible for the green coloration in plants.

However in the autumn, because of changes in the length of daylight and temperature, the leaves stop the food-making process. The chlorophyll pigment breaks down, the green color disappears from the leaf, and yellow to orange colors become visible in the leaves and give the leaves part of their fall splendor.

Therefore, the correct option is A.

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The answer is A) chlorophyll is the most abundant off all the pigments.

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Answers

The answer is Batesian.

Which best supports the idea that the surface of the moon has changed very little?

Answers

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